Patent US2913813A successfully refreshed from Google Patents.
US2913813A
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US
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Composite metal product
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1955-06-22
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Granted: 1959-11-24
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Expires: 1975-06-22
Abstract
No abstract record available.
Inventors
- 👤 Howard J Homer
- 👤 John R Whitacre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:49
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/02; C23C16/0272; C23C16/0281; C23C16/06; C23C16/18; C23C28/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10S428/9335; Y10S428/936; Y10S428/938; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49982; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12583; Y10T428/1259; Y10T428/12701; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12847; Y10T428/12861; Y10T428/12944
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
58 words
A CLADDED PRODUCT COMPRISING ALUMINUM HAVING AN OXIDIC SURFACE, A LAYER OF NICKEL METAL, AND INTERPOSED BETWEEN THE OXIDIC SURFACE AND THE NICKEL IN BONDED ENGAGEMENT WITH EACH, A LAYER OF LEAD, THE LEAD LAYER BEING OF LESSER THICKNESS THAN EACH OF THE NICKEL AND ALUMINUM LAYERS AND HAVING ONE FACE THEREOF OXIDE-FREE AND BONDED TO THE NICKEL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |